Matz Sels 6/10 - Largely untested and could not be blamed for the two goals Newcastle conceded. The Belgian's distribution however was too slow when the Magpies were chasing the game.
Daryl Janmaat 6/10 - The Dutchman was Newcastle's main outlet at times and gave them the width they needed, but his crossing ability was shocking, with balls being floated into the box with on pace on them, making it easy for Huddersfield to defend.
Chancel Mbemba 6.5/10 - A slip-up from Mbemba gifted Huddersfield the win but the rest of the performance was very solid from the ball-playing centre-half. His ability to bring the ball out of defence should ensure he stays ahead of Grant Hanley and Ciaran Clark in the pecking order.
Jamaal Lascelles 5/10 - The new Newcastle captain is having a tough start to life with the armband, and suffered another torrid afternoon.
Paul Dummett 5.5/10 - Despite being fairly competent in the Premier League, Dummett seems to be struggling with life in the Championship. His limitations in possession were exploited by Huddersfield, who constantly forced the ball out wide to the left back.
Vurnon Anita 5/10 - The versatile Dutchman struggled to find a home against Huddersfield, playing at right midfield, left midfield and then ending up at right back. Benitez needs to find his right position or drop Anita for their game against Reading.
Isaac Hayden 5.5/10 - Having enjoyed a stellar debut against Fulham, the Arsenal graduate came crashing back down to earth on his home debut. Hayden's use of the ball was poor and gave away possession far too often.
Jonjo Shelvey 6/10 - Newcastle's only creative force in midfield, Shelvey suffered a polarising afternoon at St James' Park. At times he was magical, others he was miserable. Despite his inconsistency, the former Swansea man should retain his place on Wednesday evening.
Rolando Aarons 4/10 - Hooked at half-time, it was a difficult first start of the season for the 20-year-old. Aarons' decision-making was poor and lost possession more often than he kept it, but hopefully hasn't blown his chance to impress Benitez.
Mohamed Diame 4/10 - A non-existent figure for most of the game, Diame found it difficult to get involved with play and was unable to provide the link between midfield and attack. His one positive moment came when he won Newcastle's penalty.
Dwight Gayle 7/10 - Often isolated, Gayle is crying out for a partner and the return of Aleksandar Mitrovic. Looked nervous taking his penalty but managed to make amends with the rebound. The striker will be happy to create his account, but will continue to feed off scraps if he is continuously used as a loan striker.
Matt Ritchie (Aarons 45) 7/10 - Provided an injection of pace and directness that Newcastle were lacking, and worked well with Janmaat.
Ayoze Perez (Diame 75) 5/10 - Dropped for a poor performance at Fulham, Perez showed nothing to suggest he should be recalled. The Spanish forward needs to get used to the physicality of the Championship if he is to succeed in this league.
Adam Armstrong (Janmaat 83) 6/10 - The youngster didn't get enough time to make an impact, and struggled to find space as Huddersfield got men behind the ball to defend their lead.